Prompt Token Counter
Online tool to count tokens in OpenAI prompts.
At a glance
Starts at
Free
No paid plan found on the vendor's site, September 2026.
Free tier
Yes
Platforms
Web
Best for
Developers, data scientists
Not for
Complex prompt optimization projects
3.9 out of 5
Scored by a Toolio reviewer after real useOur verdict
Keeps you within token limits and helps with cost control. Not suitable for complex model optimization tasks.
✓What it does well
Token countingCounts tokens in your prompt accurately and quickly.
Model compatibilitySupports multiple OpenAI models including GPT-4 and smaller variants.
No storageDoes not store or transmit your prompts, ensuring privacy.
✕Where it falls short
Limited optimizationsDoes not offer advanced prompt optimization techniques.
No professional serviceMissing comprehensive prompt engineering and analysis packages.
Single-use toolFails to provide ongoing monitoring or support for complex projects.
Key features
Prompt inputAccepts custom prompts directly.
Model selectionAllows choosing between different OpenAI models.
Free versionAvailable for free with limited features.
Advanced OptimizationComprehensive prompt engineering